Iron sheet piling



July 31, 1934. E. BECKER 1,968,241

IRON SHEET ,PILING Filed Sept. 4, 1931 Patented July cally acting forces Application STATES are Fries IRON SHEET PILING Enno Becker, Bremen, Germany September 4, 1931, Serial No. 561,283 Germany September 9, 1930 5 Claims. (Cl. 61-60) sheet piling that parts ry great stresses.

the uniformly g from ground :5 and water pressure, further horizontally or vertihave to be taken up at different places along the wall, or along sections, of the wall,

intervals.

Various methods ing with the problem of producing at regular short or long or irregular have been adopted for dealwalls with different moments of resistance; for instance, it

has been proposed to for section by introducing iron wall, but this has the shaped sheets of iron disadvantage up the locally greater forces. 7

The present invention avoids this disadvantage; it proceeds to of easily changing the wall and increasing the solution of tiify a wall of channel box sections into the that specially have to be made for taking the problems the moments of resistance of the resist tional load by another method.

According to the invention V groove or channel section is built anoe to addisheet piling of up of single elements in such manner that the locking device ion allow of the linking toand the construct gether of the element Several constructional form piling according to the accompanying Figure 1 indicates a corruga Figure 1a illustrates a box piling.

Figure 2 the invention s in two different ways.

s of the sheet are shown in drawing. In the drawing:

with divided connecting members.

with alternate divided an members.

Figure 3a illustrates a with alternate divided an members.

Figure 4 illustrates 2a. illustrates a box-s ded and undivi ted sheet piling.

shaped sheet illustrates a corrugated sheet piling haped sheet piling ded connecting tes a corrugated sheet piling with divided backs.

Figure la illustra with divided backs.

Figure 5 illustrat with alternate divided and un Figure 5a illustrates a boxd undivided connecting box-shaped sheet piling d undivided connecting a corrugated sheet piling tes a box-shaped sheet piling es a corrugated sheet piling divided backs. shaped sheet piling with alternate divided and undivided backs.

constructional form of the in- According to the vention illustrated of the backs a an in Figure l, d the connectin the wall consists g members b,

which when fitted'together form a continuous length of channel sheeting with the channel cavities occurring alternately on the two sides of the wall. The backs a have their. dove-tail grooves which run the length of the sheet of metal at both edges formed 7 with constricted openings (so-called claws), into which the shoulders likewise dove-tail in cross-section-securely engage along the whole length of the connecting members b, so that thus the backs and connecting members'are so joined together that they are proof against any pressure or tensional forces that may be exerted.

Figure 1a shows a wall built up of the same sections, but the connecting members b are fitted in a position obtained by swinging them about a plane normal to the position of the Wall, so that thus a wall is obtained of open box sheeting; the channel section however, can, according to Figure l, at all times be restored by the different disposition of the connecting members I), thus with these sections a wall can be constructed which is of channel or box section or a combination of both.

In order to ensure an efiective moment of resistance of the wall with respect to its axis, the locking parts are held together by any suitable means, which applies to the figures hereinbefore and hereinafter described.

To improve the ability of the wall for ramming according to Figures 1 and let, all the connecting members I), or every alternate one, is divided in the length of the wall and one of the known types of lock is here fitted in place.

In the first case, the finished wall produced by building up in channel section, is an open channel piling (Figure 2), and that produced by the box section is an open box piling (Figure 2a) with the unconnected locking parts provided in each connecting member in the length of the wall. In the latter case the finished wall produced by building up in channel section is an open double channel (Figure 3), and that produced by the box section is an open box piling (Figure 3a) with the unconnected, locking parts in every second connecting member in the length of the wall. It will be understood that a larger number of undivided connecting members may be employed before the use of a divided connecting member; thus walls are produced which are built up of backs and connecting members and in which channel and box sections may alternate by the way of plates.

The wall shown in Figure 1 may be divided in such manner that instead of the connecting members I) being divided it is the backs a which are divided, they being connected again by one of the known types of look; all the rear sections a may in such case be divided, or only every alternate one.

In the first case the finished wall produced by building up in channel section is an open channel piling (Figure 4), and that produced by the box section is an open box piling (Figure 4a) with the unconnected locking parts provided in each back a. In the latter case, the finished wall produced by building up in channel section is an open channel piling (Figure 5) and that produced by the box section is an open box piling (Figure 5a) with the unconnected locking parts in every second back a, that is to say only on the outside of the wall or only on the inside of the Wall.

The examples hereinbefore described show that with the iron sheet piling built up from separate f parts it is possible to produce walls by so providing and combining the parts that the connecting members b can be jointed about an axis normal to the plane of the wall moved through the same angle, the walls consisting only of open channel section or only of open box section or of both channel and box section together in any desired arrangement, so that either single sheeting,

double sheeting or whole walls can be rammed.

' The invention hereinbefore described has the advantage that the parts can be very simply proadapt themselves to local conditions.

more every thickness of Wall and therefore every ducedin any rolling mill and assembled verymoment of resistance, however great, can be attained for channel and box section of walls, as all the parts need only a small incision in the rollers and thus no account need be taken of the diameter of the rollers provided. Furthermore a considerable practical advantage is that the walls are uniform in thickness independently of whether the sheeting is of channel section or whether it is of box section or both together.

I claim:

1. Iron sheet piling composed of two sets of substantially fiat irons, namely backs and connecting elements, the backs being arranged parallel to the axis of the wall and the connecting elements transversely thereto, both sets of irons beingprovided at their ends with symmetrical "locking parts consisting of grooves and tongues the connecting elements.

the grooves being arranged at the same side of the back irons while the tongues are disposed on opposite sides of the connecting elements, the two sets of irons being connected by said locking parts so as to form a pile wall with a channel section.

2. Iron sheet piling composed of two sets of substantially flat irons, namely backs and connecting elements, the backs being subdivided into two interlocking portions arranged parallel to the axis of the pile wall while the connecting elements are disposed in an oblique direction thereto, both sets of irons being provided at their ends with symmetrical locking parts, consisting of grooves and tongues the grooves being arranged at the same side of the back iron while the tongues are disposed on opposite sides of the connecting elements.

3. Iron sheet piling composed of two sets of substantially flat irons, namely backs and connecting elements, the connecting elements being subdivided into two interlocking portions arranged substantially perpendicularly tothe axis of the pile wall'while the backs are disposed parallel'thereto, both sets of irons being provided 100 at their ends with symmetrical locking parts consisting of grooves and tongues the grooves being arranged at the same side of the back irons while the tongues are disposed on opposite sides of l0." 4. Ironsheet piling composed of two sets of substantially flat irons, namely backs and connecting elements, the backs being arranged parallel to the axis of the wall and the connecting elements transversely thereto, both sets of irons ilo being provided with symmetrical locking parts which are arranged at the same side'of the back irons and at opposite sidesof the connecting elements.

5. Iron sheet piling composed of two sets of substantially flat irons, namely backs and connecting elements, the backs being arranged parallel to the axis of the wall and the connecting elements transversely thereto, the backs being provided with looking grooves having a level and re; inforced part on either side of the groove while the connecting elements are provided with tongues disposed on opposite sides, for which purpose the ends of the connecting elements are olfset thereby forming shoulders which-have 'a level surfacecooperating with one of the said level parts of the backs.

ENNO BECKER. 

